Pasteurizing apparatus.



PATENTED SEPT. 25, 1906.

H. E. WEBER.

PASTEURIZING APPARATUS.

APPLICATION FILED MAR.1,1906.

. To all whom itmay concern.-

i No. 831,813.

- ED grains PATENT oFFI E HENRY E. WEBER, or CANTON, OHIO.

Be it known that I, HENRY. E. WEBER, a citizen of the United States, residing at Canton, in the county of Stark and State of Ohio,

have invented a new and useful Improved PasteurizingApparatus, of which the following is a specification.

The invention relates to an apparatus for heating or cooling liquids, as in the process of purifying or pasteurizing milk wherein the liquid is first brought to .a comparatively high temperature and then by one-or several successive stages quickly reduced to a considerably lower temperature, and in such process it is desirable for the greatest efficiency that the change in temperature be accomplished as nearly instantaneously as possible and that each and all of the particles of liquid be individually subjected to the heating and cooling treatment. This object is attained by means of the construction, mechanism, and arrangement illustratedin the accompanymg drawings, in which. 4

Flgure 1 1s aside elevation of a two-series apparatus, showing the lower series in sec-- tion; and Fig. 2, a plan of one bowl.

Similar numerals refer to similar parts throughout the drawings.

Each series 1 is composed of the outer vessel 2'and-.the inner vessel 3 with the interval or chamber 4 between them, in which chamher is located the heating or cooling agent,

- line of the bottom is which, as illustrated, may be composed of hot The outer or cold water, as the case may be. vessel may be sha ed like the inner bowl, and its rim 5 is prefera lyinturned so as tobetter retain the water in the vessel, and'in the axial rovided the journalbearing 6, which IIHLYRJB provided with the packing 7 and the retaining-cap 8. ,The

outer vessels of the series are-located one .above the other, preferably in echelon, and

may be attached-to different standards of the same frame, as 9. .An inlet-pipe 10 and an" outlet-pipe 11 are providedfor each outer vessel, preferably on opposite sides at or near the rim, through which pipes theheating or Q cooling agent 12 may be introduced and discharged. The inner vessel 3. is shaped as a bowl or cup and, as illustrated, may be formed'as the "periphery of a halfsphere, although this specific form is not essential, and the rim 13 of f the bowl is-preferably turned outward and downward over and freely outside of the rim of the outer vessel to prevent any part of the Specification of Letters Patent; ilpplioation filed March 1, 1906. Serial No. 808.595.

2 PASTEURIZING APPARATUS.

Patented Sept. 25, 1906.

' cooling agent from entering the bowl. .The

inner vessel or bowl is made of thin metal or other good heat-conducting material, and the discharge-aperture 14 islocated intheaxial line of the bottom. The tubular shaft 15 is joined to or, as illustrated, attached in the discharge-aperture and is journaled in the bearing 6' of the outer vessel. Thetube 15 may be attached in the discharge-aperture of .the bowl by means of the bushin or thimble 16, which forms an annular shou der or hearing 16*, which rests on the bottom of the outer vessel. The tubular shaft 15 is also journaled in the bearing 17, formed or attached on the frame, at an interval above which journal-bearing the sprocket-wheel 18 is secured to thashaft, and the spiral spring 19 is 10- cated around the shaft between the outer-' vessel bearing and the hub 20 of the sprocket wheel, and the energy of this s 1s exerted to draw the annular shoul er 16* downward against the bottom .of the outer vessel, which action assists in preventing any leakage from the outer vessel. The pan or tray 21 is preferably fprovided at the lower end of,

the tubular sha t to'catch' any leakage there may be from the outer vessel through the journal-bearing and packing thereof.

The. several inner vessels or bowls are designed to be rotated, as by means of the sprocket-chains 22, which may operate around the wheels. 23 on the counter-shaft 24, journaled to the frame, which shaft in turn may be actuated, by means ofthe bevel co gear 25 and the pulley 26, from any suitable source of power. The" feed troughs or funnels 27 are attached to the frame or other fixed support and when used interserles are preferably located directly under the ends of the tubular shafts of thezvessel above. These funnels are arranged to discharge at a point at or near the rims-of the bowls and prefer ably 'in the same direction as the rotation thereof, and it'is'evident they may be omitted between the-bowls of a series, in which event the tubular shafts can discharge dithe attenuated film of milk can beheld be-oi any bowl-or cup form between a some- 1 i from the rotation of the bowl, so that as the resultant of these antagonistic forces the thin film of milk is held against the side of the I bowl and quite slowly descends therealong tially the entire surface of the bowl until it and in. so doing pursues a somewhat spiral course,'se thateach particle of milk travels slowly ir a tortuous course over substanreaches the discharge-aperture in the bottom thereof, whence it runs down through the tubula'r shaft directly into the next feed funnel or bowl of the series or to a final receptacle;

- 7 While the film of milk will become greater in depth asitfio'nverges to the discharge-aperture, it will'be noted that-throughout the greater period of its contact with the sides of the bowl it is spread out thereon in a very thin film and is continuously exposed for an extended period to the-action or treatinent of the heating or cooling agent. through the thin wall,of the bowl, and it is also evident that the film of milk is the thinnest when it. first impinges the side of the bowl and for a considerable period'thereafter, 'as'a result of which the individual particles ofmilk are more 'quickly or. suddenly affected by the heating or cooling agency than wouldbe the case if the milk were in greater volumeor depth at its initial contact, as is the case at or near the middle of the rotating disk, and, furthermore, when the milk is dis when it is sought'to treat it by supplying it charged in a thin film over the edge ofsuch a disk it 'is so accelerated in speed during the period the filmis thin that sufficient time is not afiorded for a proper action of the heatmgor coolingagent? discharge-aperture, a convenient opportunity is aflordedfor taking its temperature by' a thermometer, so that full and exact inforg ,matlon can always be obtained on this point and the treatment of the milk intelligently "controllpd,a1id the milk so accumulated is in of the series, so that a sudden transition from Eosition to be discharged immediately and y a most "directtchannel into thenext bowl a highto a lew temperature can be accomplished within 'a minimum period of time, and-it is evident that the period during which against the side of the bowl may be controlled almost at will by'varying the speed at.

around the first bowl in the series, and a coolwhichthe bowl is rotatedand'alsosby vary-;

ing its specific shape, which it is evident may what shallow and an elongated funnel or inverted cone.

When using the apparatus for steriliz mg or pasteurizing milk. by the process of heating and then cooling it by one or more successive stages, it will be understood that a heating agency is used in the chamber When the milk accumulates inthe bottom of the bowl or in the.

ing agency I second bowl in the series, and that additlonal ner as herein "illustrated and described for a series of two bowls. v s

The pasteurizing process which isv 'escribed but not claimed herein is made he sub] Patent, filed herewith.

What Ilelaim' as my invention, and. desire to secure by Letters Patent, is

Q1. Alpasteurizmg apparatus comprising a there being an intervening chamber adapted toreceive a heating or cooling agent, with meansfor feeding into the bowls adjacent to their rims and axial discharge-tubes in their bottoms each' feeding directly. into the bowl below, I

J 2. A pasteurizing apparatus oomprisinga vessel, a rotatable bowl therein, there being an intervening chamber adapted to receive series of rotatable bowls each adapted to have a heating or cooling agent therearound, with means for-feeding into the bowls adjacent to their rims, and axial discharge-tubes in their bottoms each feeding directly into the bowl below; I n

6. A asteurizing apparatus comprising a rotatab ebowl adapted to, have atreatin'g agent therearound, with means for feeding into the bowl adjacent toits rim, and an axial discharge-aperture in its bottom. Y s 7-: In a pasteurizing apparatus, a rotatable bowl adapted to have a treating agent there ture in its bottom. a

bowl adapted to have a treating agent theremiddle thereof.

In testimonywhereof I have signed my name to this specification in the presence of two. subscribing witnesses. r

' HENRY E. WEBER.

-Witnesses: I

HARRY FREASE,

MINNIE F. ANTHQNY.

is used in the chamber around thearound, andhaving an axial discharge-aperaround and means for discharging from the.

bowls can be used in series in the same manect of another application, for Letters series of vessels, rotatable bowls therein,

a treating agent, with means for feeding into 5. A pasteurizing apparatus comprising a 8. In a pasteurizing apparatus, a rotatable I 

